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UNITED sTATEs PATENT oirionf SAMUEL SHEPHERD AN'D DAVID BALDWIN, OF..NASHUA, NEW HAMPSHIRE.

MACHINE FOR TONGUING AND GROOVING BOARDS AND FOR WORKING IVIOLDINGS, &c.

Specification of Letters Patent No. 612, dated February 21, 1838,;Antedated August 21, 1837.

Machine for Tonguing and Grooving Plank and Boards and for WorkingMoldings; and

we do hereby declare that the following 1s a clear and Lfull and exactdescription thereof.

In the description of said invention reference is had to theaccompanying drawings, which are made a part of this specification.

In Plate 1, Figure 1, is an elevat-ioniand Fig. 2, a plan of themachine.

machine. B B is an uprightshaft to which are fastened the cutters b, b,operating horizontally in head or plane stocks.

In Plate 2, Fig. 1, is a plan. of the plane head which we denominate areverse operatj ing revolving plane head, in which are ing serted thevarious kinds of cutters for the; various purposes of tonguing andgrooving boards and plank, raising-panels for doors and working outmoldings of all kinds. Said cutters are confined in the plane head bythe set screws 1 1 1 1 and slots, Fig. 4, &c. This plane head isconstructed with double mouths and is designed to be used for operatingeither with the grain of the Wood, or against the grain. 2, 2, 2, 2,represent the cutters as inserted to operate against the grain of theWood. By taking them out and inserting the reverse cutters asrepresented by the dotted lines at 3 3 3 3, then reversing the belt bywhich the plane is driven, the cutters will operate with the grain ofthe wood. The double mouth of the plane head is represented at 44:. Fig.2, represents the reverse plane heads, in their particular position whenattached to the upright shaft B, and operating horizontally forthepurpose of raising panels for doors. Fig. 3, is also a representationof the reverse plane head operating horizontally on the upright shaft asabove in which are inserted the various cutters for the several purposesof tonguing and grooving boards, plank and other articles, and workingvarious moldings, &c. Figs. 4 and 5, are plans of the cutters used inthe reverse operating revolving plane head for the purpose of formingthe tongue and groove on the stuff worked. Fig. 6, represents thecutters for raising panels for doors. Figs. 7, 8, 9, and` 10, representfour different kinds of cutters from the great n In each of said gures AA A A is the frame of the v variety of forms which may be used forworking ,out moldings in a lshape corresponding to the shape of thecutters. Fig. 11 represent-sv a` square edged cutter which may beinserted in the plane head and used, for the v The shaft, B B, Plate 1,and cutters are Y driven by means of thel belting c 0, l0 from `thepulley D,l to. whichthe power is applied. The board, plank or: otherstuft' to be worked is placed upon the. carriage H H represented by thelines inred ink. This carriage is moved forward and backward running onways, upon the frame by meansy of a rack and pinion, driven by the beltsII,.II, from the sha-ft Z Z, to which motion is 'communicated by thebelting K K from the main shaft.V The Vrackis attached to thefunder sideof the carriage as represented in Fig. 2, same plate, by the lines inred ink at J J J J. L L L L in the same ligure is a clutch-shaft onWhich plays the clutch M M moved by the shipper N N N. O O inthe samefigure is the pinion shaft and P PP is the gearing by which the motionis reduced from the clutch shaft to the pinion shaft. The gearing isshown in Fig. 3, same plate. One of the belts II is an open belttheother a reversed or cross belt. The clutch being moved by means of theshipper up to the pulley driven by the open belt, the clutch pin strikesagainst the dog in that pulley and the shaft is carried around and thecarriage moved in one direction and the clutch being moved down againstthe dog in the other pulley driven by the reversed or cross belt, theclutch pin strikes against the dog in that pulley and the shaft isturned and the carriage moved in the opposite direction. The stuii;I tobe worked is placed upon the carriage-the edge or part to be workedbeing so adjusted as that the circular saw S S, operated by the belt E,upon the carriages passing along the frame will cut a slab from thatedge or part, if necessary to straighten it, and this slab is carriedaway from the machine by passing over the guide F. The stuff as it ismoved along the Vcarriage passes under the trucks T T, Fig. 1, theslides RR R R being forced down by the Weights W, W, acting on thelevers V V V V and the stuff is thus held firmly in its place on thecarriage. To diminish the friction, trucks or rollers are let into theframe immediately under the trucks T, T, on which the carriage moves. Asthe carriage passes along in the direction from Q, to X, the edge orpart of the stuff to be Worked is brought in contact with the cutters,and each cutter taking out a chip or shaving at every revolution of theshaft B B a tongue a groove or a molding is out on that edge or partcorresponding to the form of the cutter. When the carriage has passedthe cutters, and the Whole length of the stuff has ben Worked, theshipper N N is moved and the clutch is carried. against the otherpulley. The other belt then drives the clutch shaft and the carriage ismoved in the opposite direction. The frame being furnished With a shaftsimilar to B B and cutters upon the other side, the other side of thestuff can be Worked in a similar manner as the carriage passes back. Inoperating this reverse operating plane and cutters for raising panelsand Working out moldings, the piece of stud to be Worked is firststraightened on the edge and then confined upon the carriage.

On Plate 2, Fig. l2, 1s a plan; Fig. 13, an elevation, and Fig. let anend view of the guide which is used in tonguing and grooving boards forthe purpose or raising the slab as it is separated from the board orplank in straightening it and so passing it oli by a gradualperpendicular rise above the reverse operating plane and the board orplank from which the edge or slab is separated; which board or plankcontinues Vpassing upon the carriage I-I H with its straightened edgeneXt to and passing the revolving cutters and thus forming the tongue orgroove, according to the shape of the cutters.

Now What We claim as our invention and desire to secure by LettersPatent is- The peculiar constructionl of the reverse operating revolvingplaning Wheel; z'. c. the double mouth so as to Yinsert reverse cutters,for the specifiopurpose of operating With and against the grain of theWood, believing this to be the most perfect and best adapted mode in usefor the purposes of Working the variouskindsof Wood; also, theparticular inclining form of the guide and lip by which the slab israised perpendicularly above the revolving planing Wheel, and kept bythe lip from coming in contact with the movements of the machine; also,the particular mode of Weighting down the board or plank on the carriageas it passes, asis specied above.

SAMUEL SHEPHERD. DAVID BALDWIN.

Vitnesses:

Z. A. BALDWIN, PETER CLARK, Jr.

